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Streator, IL Weather Forecast | 5 Day

Updated: Wed Sep 16th 2026 9:00 PM CDT

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Streator, IL Weather Forecast - 9-16-26 - Light Rain Shower

Light Rain Shower

Wed 9-16-26

Light Rain Shower with a high of 75°F and a low of 66°F. It will likey rain, having a 89% chance of a downpour with an estimated 0.34in. Wind will be moderate, blowing around 11mph on average and gusts of 11.2mph at 10 PM. High humidity with average of 90% is anticipated, the maximum being 97% at 10 PM and 97% being its lowest at 10 PM. Barometric pressure is its highest of 30.23inHg at 10 PM, a lowest point of 30.23inHg at 10 PM with an avg 30.23inHg.

    • HI: 75°F
    • LO: 66°F
    • Rainfall: 89% | est. 0.34in
    • Snowfall: 0%
    • Wind
      10.1 mph
    • Humidity
      90% avg.
    • UV Index
      5.1
    • Air Quality
      Good
    • Sunrise
      06:36 AM
    • Sunset
      07:03 PM
    • Moonrise
      12:59 PM
    • Moonset
      09:50 PM
    • Moon Phase
      First Quarter
Streator, IL Weather Forecast - 9-17-26 - Scattered Showers

Scattered Showers

Weather Tomorrow, Thu 9-17-26

Scattered Showers with a high of 79°F and a low of 65°F. It will likey rain, having a 90% chance of a downpour with an estimated 0.42in. Winds will be light at 10mph and gusts of 18.4mph at 10 PM. High humidity with average of 89% is anticipated, the maximum being 98% at 3 AM and 72% being its lowest at 2 PM. Barometric pressure is its highest of 30.24inHg at 8 AM, a lowest point of 30.16inHg at 3 PM with an avg 30.2inHg.

    • HI: 79°F
    • LO: 65°F
    • Rainfall: 90% | est. 0.42in
    • Snowfall: 0%
    • Wind
      9.6 mph
    • Humidity
      89% avg.
    • UV Index
      4.7
    • Air Quality
      Good
    • Sunrise
      06:37 AM
    • Sunset
      07:01 PM
    • Moonrise
      02:02 PM
    • Moonset
      10:38 PM
    • Moon Phase
      First Quarter
Streator, IL Weather Forecast - 9-18-26 - Scattered Showers

Scattered Showers

Fri 9-18-26

Scattered Showers with a high of 81°F and a low of 64°F. It will likey rain, having a 79% chance of a downpour with an estimated 0.3in. Wind will be moderate, blowing around 14mph on average and gusts of 29.1mph at 10 PM. High humidity with average of 84% is anticipated, the maximum being 95% at 11 PM and 66% being its lowest at 3 PM. Barometric pressure is its highest of 30.21inHg at 4 AM, a lowest point of 30.01inHg at 10 PM with an avg 30.13inHg.

    • HI: 81°F
    • LO: 64°F
    • Rainfall: 79% | est. 0.3in
    • Snowfall: 0%
    • Wind
      13.2 mph
    • Humidity
      84% avg.
    • UV Index
      6.4
    • Air Quality
      Good
    • Sunrise
      06:38 AM
    • Sunset
      07:00 PM
    • Moonrise
      02:56 PM
    • Moonset
      11:33 PM
    • Moon Phase
      First Quarter
Streator, IL Weather Forecast - 9-19-26 - Light Rain Shower

Light Rain Shower

Sat 9-19-26

Light Rain Shower with a high of 81°F and a low of 64°F. It will likey rain, having a 86% chance of a downpour with an estimated 0.22in. Wind will be moderate, blowing around 13mph on average and gusts of 24.9mph at 2 AM. High humidity with average of 87% is anticipated, the maximum being 98% at 3 AM and 72% being its lowest at 2 PM. Barometric pressure is its highest of 30.04inHg at 12 AM, a lowest point of 29.81inHg at 10 PM with an avg 29.91inHg.

    • HI: 81°F
    • LO: 64°F
    • Rainfall: 86% | est. 0.22in
    • Snowfall: 0%
    • Wind
      12.5 mph
    • Humidity
      87% avg.
    • UV Index
      3.9
    • Air Quality
      Good
    • Sunrise
      06:39 AM
    • Sunset
      06:58 PM
    • Moonrise
      03:41 PM
    • Moonset
      Does not set today
    • Moon Phase
      First Quarter
Streator, IL Weather Forecast - 9-20-26 - Light Rain Shower

Light Rain Shower

Sun 9-20-26

Light Rain Shower with a high of 75°F and a low of 62°F. It will likey rain, having a 91% chance of a downpour with an estimated 0.47in. Wind will be moderate, blowing around 15mph on average and gusts of 27.3mph at 10 PM. High humidity with average of 89% is anticipated, the maximum being 99% at 6 AM and 79% being its lowest at 12 AM. Barometric pressure is its highest of 30.02inHg at 9 PM, a lowest point of 29.8inHg at 2 AM with an avg 29.92inHg.

    • HI: 75°F
    • LO: 62°F
    • Rainfall: 91% | est. 0.47in
    • Snowfall: 0%
    • Wind
      14.5 mph
    • Humidity
      89% avg.
    • UV Index
      5.9
    • Air Quality
      Good
    • Sunrise
      06:40 AM
    • Sunset
      06:56 PM
    • Moonrise
      04:18 PM
    • Moonset
      12:33 AM
    • Moon Phase
      Waxing Gibbous
Streator, IL Weather Forecast - 9-21-26 - Scattered Showers

Scattered Showers

Mon 9-21-26

Scattered Showers with a high of 62°F and a low of 55°F. It will likey rain, having a 82% chance of a downpour with an estimated 0.13in. Wind will be moderate, blowing around 16mph on average and gusts of 28mph at 7 PM. High humidity with average of 86% is anticipated, the maximum being 93% at 6 PM and 74% being its lowest at 4 AM. Barometric pressure is its highest of 30.11inHg at 11 PM, a lowest point of 30.02inHg at 1 AM with an avg 30.05inHg.

    • HI: 62°F
    • LO: 55°F
    • Rainfall: 82% | est. 0.13in
    • Snowfall: 0%
    • Wind
      15.9 mph
    • Humidity
      86% avg.
    • UV Index
      4
    • Air Quality
      Good
    • Sunrise
      06:41 AM
    • Sunset
      06:54 PM
    • Moonrise
      04:48 PM
    • Moonset
      01:35 AM
    • Moon Phase
      Waxing Gibbous

This 5-Day weather forecast is valid for ZIP code 61364, accurately covering the area of Streator, IL.

Currently

Mist 67°F
30.24 inHg.
Barometer
96%
Humidity
ENE 9.7 mph
Wind
Mist

National Outlook

Storms and Heat Hit Central U.S. 09-15 to 09-17

Tue Sep 15th 2026, 8:34am PDT
Read

Rain and Thunderstorms Shake Up the Plains 09-18 to 09-22

Extended Forecast
Tue Sep 15th 2026, 8:35am PDT
Read

5 Day Forecast Nearby

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